Automatically adjusted wick stop for oil burners



Oct-'23 1923.

L. S. CHADWICK AUTOMATICALLY ADJUSTED WICK STOP FOR OIL BURNERS 1921 3 Sheets-Sheet 1 Original Filed Feb. 26

om. 2s, 1923. l 1,471,539

L. S. CHADWICK AUTOMATICALLY ADJUSTED WICK STOP FOR OIL BURHERS Orignl Filed Feb. 26. 192] 3 Sheets-Sheet 2 000 DDG Patented @et 23, 1923.

LEE s. onenwicn, or snaxnn. nnrenrs, oiaio, Assistme To THE CLEVELAND METAL raonucrs coivrrzinv, er cLEvELaiin;'onio, i conronnrion 0E onio.

AUTOATICALLY ADJUSTED WICK STOP' FOR OIVL BURNERS. l

Application filed February 26, 1921, Serial No. 448,198. Renewedei'une 6, 1923.

To all whom t may concern Be it known that I, LEE S. CHADwioK,-a citizen ot the United States, residing at Shaker Heights Village, in the county of Cuyahoga and State ot Ohio, have invented a certain new and useful Improvement in i-"utomatically Adjusted Wick Stops for Oil Burners, oit which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

rIhis invention relates to-oil burners of the class employing wicks and incorporating means for raising` and lowering the wick.r

rIhe principal objects of the invention are to provide means for stopping the wick in high position and which automatically adjusts itself to compensate. tor the variable length of the wick due to its being cleaned or trimmed; to provide an adjustment for said means through which the high position of the wick may be varied; and to provide a device through which said means may! be rendered ineffective so that the wick may be removed from the burner.

Further and more specific objects are the provision of a comparatively simple and durable construction through which the ends sought to be attained are eii'ectually accom- 'plished with certainty of action; and which aords convenience 01"' manipulation and adjustment.

These several objects, and others which will become apparent as this description proceeds are attained in the embodimentsillustrated in the accompanying drawings, Vdescribed in detail hereinafter, and finally set out in the claims annexed hereto.

In the drawings, Fig. V1 is a central vertical section through a burner embodying one form of my invention; Fig. 2 is a sectional plan on the line 2"-2 of Fig. 1; Figs. and 4 are views, similar'to Fig. 1 but less extensive, which show, respectively, the stop in eii'ective position, restricting the wick against being elevated above high posi tion; and in ineiiective position, under which condition the wick may be-removed from the burner; Fig. 5 is a central vertical section through a burner embodying another form ot .my invention, the stop being shown in effective position in dotted lines; Fig. 6 shows the stop tripped to releasethe wick so that it may be removed from theburner;

Figs. 7 and 8 .are central vertical sections 1 through a burner, in planes at right angles to each other, .which incorporates a further modification ot the invention; and Fig. 9 is a sectional view, similar tolFig.f7, showing the stop in effective position. A 3 I have shown'my invention incorporated in burners ot the type comprisinginner and outer wick tubes between whicha cylindrical wick is guided. In Figs. 1 to 4, the outer wick tube is designated 1 and the inner' wick j tube 2, and at their lower ends they are connected by a wall 3 so as to enclose a space 4 within which the wick 5 is contained. The wick is equipped with a carrier 6 which surrounds the lower portionV of the wick and is attached thereto by having its lower edge formed or crimped about the lower edge of the wick, as indicated *at 7.

Spaced vertical walls 10 extend transcured to therbeain 12. -Arod `15 has its lower end connected with .the beam 12 anduits upper end guided throughan aperture lin the4 top wall 16 that closes the space between soV the walls 10. A disk 20 is applied to the j wall 16 and the same has its edge turned upwardly to provide a flange 21 into which the base of a iame spreader 22shown in dotted lines, may be confined. l Y

A lever 25, pivoted upon a pin 26 that is supported by and between the walls 10, is made up of two side plates ,that'are connected at one end by a part 27 and are spaced the 'side plates of theY lever extendingbeyond said weight through a slot in the inner wick tube into the wick space where a roller 2301's supportedl between lsaid plates on a pintle 31' and in a position to be engaged by `apart at the opposite end by a weight 28,

the top of the wick whenthe wick-is elevated.

Guided between walls l0 is a weight 235V VJformer position within the wick space.

'of its-- abutment l1 withthe part 27y of th which has a projecting portion 36 provided with an aperture 37 through which the rod 15 passes. `When the parts are in normal position the weight rests upon the lever 25, its lower portion being reduced in width to pass between the side plates of the lever. ivoted between ears 3S which rise from the weight is an arm 39 having` an aperture for the rod 'l5 and which is only slightly greater in diameter than the rod. rThe end of the arrn 39 adjacent the rod is turned down at 40 to engage the end or` the extension 36, while its opposite end has an abutment 4:1 wit-hin which screw Ll2 is threaded. The arm 39 may be' so balanced that it has a tendency to tip upwardly at its end adjacent the'rod 15 and this action is encouraged by a spring 43 that is compressed between said end of the arm and the portion 36 of the weight. While the weight 35 rests upon the lever Q5, the part 27 of the lever engages vthe abutment 41 and prevents the arm 39 from rocking` or tilting in the direction just mentioned. The upper end of the rod 'l5 has secured to it the corresponding end of a rack that extends downwardly along` the outer side or" one olf the walls 1G and is guided at its lower end through an extension or bracket 46 that is carried by the burner strizcture and within which is journaled the inner end of a spindle 17 that carries a; pinion 18 the teeth whereof mesh with the holes i9 in the rack 4,5.' The spindle is further supported by a bracket 50, and it has a hand w ieel 51 secured to its outer end. A driving conneo tion is thus effected between the spindle el? and the wick through pinion 48. rack 4:5, rod 15, beam 12, and fingers 13, so that when the spindle is rotated by means ot the hand wheel 51 the wick may be adjusted within the lwick space.

As the .vick is elevated, its upper end engages the roller 30 and displaces it inwardly, swinging; the Vadjacent end ot the lever 25 upwardly and the part 27 thereof away from the abu l. allowing; the arm 39'to rock upon its piro@J and. causing it to clutch the rod 15 by reason ot' its angular relation to the rod and the tact that its aperture is only slightly greater in diameter than said rod. Accordingly, as the rod 15 continues to rise, it will carry the arm. 8S) and parts associated and connected witl vit upwardly until the screw engages the wall 16. The parts being thus stopped, the wie will be restricted auainst movement bero high position. TWhen the wick is retracted and the weighted end ot the lever E23 downwardly as the roller 30 r :runes i;s

Sie

weight settles upon the le Q5 and arm1 89 returns to perpendicular rela` ship to the rod 15 because ot the eng;-

'respectifclyu and thrown upwardly to swing its'. end into the path oit the arm 39, in wl si tion it is shown in Fig. 4c, so that, the j )aits a sleur-ated, thN screw Ll2 is vented Yfrom en allowing the wei to rise and release j f the rod 15. Consel. i il, -h ing part may now be upper ends of the r'lngers c above the corresponding end of' wick tube when the wick may be disen, from said lingers and lifted out ot the i er. Darin the rcinoval oi the wick, order to t@sin access to the lever 55 course necessary to remove the spree lllith rfi* `,nce lo the second lor-1n o invention, in r'gs. 5 and 6 the outer inner wick tubes are designated 1 the wick space "ts lower end bj* them is closed at i 3. rlhe Vick is 1 ated at 5, i' carrier at 6, and lingers 13 coni wick to the beam 12 that is attached lower end oit a rod 60. rlhe rod opera` within the space between the walls l0 end in this space a. lever 6l is pivotally support ed upon a pin 62, the tree end op the lever carrying` a rollery 63 which is adajked to be engaged by the wick 5 when the lat" ejevated, A. weight G5V is guided. betr tie lll@ n mi n walls and has extension (lll is provided with an aperture through whirl: the rod operates. The space bei weeu he walls 1Cgl is closed at its upper end by a wall 67 whereon is mounted a which serves t position the ll 69, and the upper end the rod extent through an aperture in the wall GT. shaped lever .70 `is pivotallv supnwtcd de lilo through ears 71 from the wall'GT, ano this lever projects uriwardly throrfrh a in said wall, The nose 73 or@ is adapted to pass through an opf4 ring A in the member 68 when the 'thune spike. 69 is removed. However7 whe the 'llame Vspreader is in position it prevents the noso o'l the lever 70 :trom being` projected in the manner stated so th said is resv ined against appreciable movement. .il rack 'T5 is connected to the upper end ot the roi-.l G0 and the same depends alone; one ot the side walls 10 and guided at its lower end in. bracket 41:6, which bracket, with =..=icth designated support a spindle el carries at its inner end a pinion-48n that meshes vwith the rack 75, and at its outer end a hand wheel 51a.

lVhen the spindle is rotated by 'means of the hand wheel 51a in a direction to elevate the wick through the connectionscomprised or" the pinion 489', the raclr 75, rod 60,. and beam 12a, the wick will engage the roller 63 and swing the lever 61 tothe position .indi cated in dotted lines in Fig. 5. This will result in the weight 65 being tilted and its extension 66 clutching the rod so that in the further elevation of the rod the weight will be carried with it. rlhe weight will continue to rise until the adjusting screw 65a engages the lever 70. as indicated in dotted lines in Fig. 5. rlhe weight being thus stopped, the movement ofthe rod will be arrested and the wick will be restrained against movement beyond high position.

When itis desired to remove the wick Ytroni the burner, the flame spreader 69 is removed from the positioning member 68 which will allow the lever 70 to swing up* ward with its nose projected through the opening 74 in the member 68, allowing further movement ot the weight 65. As the weight so moves, the outer end of its eXtension 66 will engage an abutment 77 that is carried by the top wall 67 (See Fig. 6) and this will render the grip of the weight upon the rod 60 of no etlect on account of the weight 65 beingpermitted to rise treely, and with the rod 60 thus released, the wick may be projected high enough to expose the fingers 18a above the wick tube la when the wien may be disconnected from said lingers and lifted out of the'burner.

In Figs. 7, 8and 9, the elements of the burner are designated by the same reference numerals as those which refer to the'correspending parts in the preceding figures e2;- cept that such numerals arev augmented by the exponent b. i

The spaced walls 10b of .f'ication are provided with shoulders or ledges 80. A rod 81 is connected at its lower end to the beam 12b, and its upper end projects through an aperture in a top wall 82 and carries a cross pin 83. This pin has its ends connected with the branches of a yoke 84 which extends downwardly along the outer sides of the walls 10b and is pivotallvattached at o5 to a lever 86 which is fulcrumed atr87 in a bracket 88 that depends from the rear side of the burner, the free end of the lever terminating in a handle 89. tvwill be seen that through these connections the wick 5b may berraised and lowered by lifting and depressing the-lever 86.` A'block 90 has a vertical bore through which the rod 81 is slidable, and withinalrerfor slotA 91.

which opens into' the bore is pivo'ted, onl a pin 92. a jaw 93 that is adapted to engage the adjacent side of the rod 81, said side bethe present modi- Serial No. 448.109. A lrelating to automatic wick stops which. l

ing preferably roughened or serrated so as` to enhance the gripping action. VThe jaw 93 is adapted to be rocked in one'direction j upon its pivot by a spring l94, one end ot which is connected to the jaw and the other to a bracket 95that is carried by the block 90. An adjusting screw V98 is threaded into the upper end of the jaw 98. A lever 98 is pivoted upon a pin99 that is supported by: and between the side walls 10b in a position to project a roller 100 that is carried by said lever through a slot 'of the inner wick tubiinto the wick space so that as the wick is elevated it will engage the roller* and displace it laterally to swing the lever 98. The lower end ,of the lever 98 is connected through a linl 101 with the jaw 93. `When the wick is elevated and the lever is swungas aforesaid it will rock the jaw in a direction to engage its'inner end with the side of the rod 81 so that as the rod Vrises it will carry with it the block 90,the weight of the blocl; increasing the grip of the jaw upon the rod. During the rise of the vblock 90, the free end of the link 101 will ride inthe slot 102 in the The parts will' continue to risewith the rod until the screw 96 engages the depressed centrail portion of the top wall 82 ',(see Fig. 9) and such parts will be stopped to restrain the rod 81, and consequently the wick, against further elevation.

Ink order to disengagelthe partsI from ,thel

serrated to enhance the holding action between theseparts. So, too, may the rod 18 .of the rst form and rod 60Y of the Asecond be roughened ifV desired and this may be ettectedl in' a very convenient `manner by threading the rod, as indicatedin connectionlwith rod 60 in Figs. 5 and 6. As an obvious alternative of threadingor serratingv the rod, the sameA may be provided with a succession of closely spaced annular grooves or ridges. Any means of effecting a posijaw 93 engages, is preferably roughened or ).10

tive 'hold of the stop parts upon the rod `is l all that is required. The smooth rod is found to worlr quite satisfactorily in all the embodiments herein illustrated .especially in those shownin Figsl toV 6.

In connection with this case,'reterence should be inadeto a companion application led by me concurrently herewithv and bear-v Other applications combination vv-Jith the have more recently led are Serial Nos. 528,813 and 528,814, dated January l2, 1922.

Having thus described my invention, what l claim is:-

ieee,

the a member movable therewith, a device connectable to said member, means enga ged and moved by the wick when the latter is elevated tor eecting the connection et sa c. device to the member, and an adjustable stop for limiting the movement ot said device.

8, ln a burner ot the class described the combination with the wici, ot member movable therewith in a direction substantially A a allel thereto, levice connectable to said member, means ngaged and moved by the wiclr when the latter is elevated tor effecting the connection of said device to the member, means for limiting the movement of the device, and further means render ing the connection between the device and aforesaid member ineffective.

1l. ln a burner oit the class described, u combination with the wick, et member movable therewith in directirn substan tially parallel thereto, i device l limited movement in the direi-tion of ment of said member, and means engaged and actuated by the wick when the latter is elevated 'for effecting connection between the device and said member.

5. In a burner -oji the class desc combination with the wick, ot a member movable therewith in direction substantially parallel thereto, a device having limited movement in the direction ot' move ment ot said member, means for clutching said device to the member so that it will move therewith, and further means engaged and actuated by the wiclr when the latter is elevated. for rendering the former means efl'ective.

6. ln burner of the class described, the combination with the wick, ot a member movable therewith, a device engaged with said member, the member being capable ot independent movement with respect to said device when the device holds a given annular relation to the member, the member and device moving together upon said device assuming a diiterent angular relation to the member, means wherewith the 'device iis adapted to cooperate and through which an angular relationship between said device and member is e'ected affords independent ced, the

movement between the member and device, said means being arranged to be engaged and moved by the wiel; thereby to alter the angular relationship between the device and member whereby the device is caused to move with the member, and a stop tor limitir a' the movement of the device.

T. ln a burner ot the class described, ghe combination with the rick, of member movable therewith, a device engaged with said member in such manner as to be inde-- pend" it ol movement therewith when in a position substantially perpendicular to the mcmoer but which clutches said member and in other than perpendicular relationship to l member, an element wherewith said decooperates when in normal position and by means of .vhich it is retaine-iil sub s'tantially perpendicuim' to the member, said element being arranged to be engaged and moved by the wick when the latter lli elevated thereby to change the angular position of the device with respect to the member and means for limiting the m vement ot the device.

8. ln burner of the class described, the combination with the wick, of wick raising mechsism, operative connections between said mechanism and the wick and involving member that is movable with the wick, a device loosely engaged with said member and independent therefrom as to movement when occupying a position substantially pendicular to said member but acting to clutch said member so as to be movable ewith when other 'A erpenrhcu ienship to the member, support tot' the device whereby it is sustained in substantially pereendicular relationship to the ember, said support being arranged to be engaged and moved by the wick when the latter is elevated to impart to said member a position other than one perpendicular with respect to the member whereby the device is caused to clutch the member. and a stop for limiting the movement of the device.

9. ln a burner of the class described, the combination with the wick, of wick raising mechanism involving a rod, a device having an aperture through which the rod eX- tendsand which is capable of movement in the direction of movement of the rod, said device being tree trom the rod when in substantially perpendicular relationship thereto but` which is so balanced as to as sume an angular relationship with respect t0 the rod 'thereby to clutch the same when suspended solely from the rod, a stop lor limiting the movement of the device and a i L 1 cooperating therewith in such manner as is accordingly`movable therewith when l (lo lease the device from the rod, one 0f said stops being movable from effective position, and means for supporting the device when in normal position in perpendicular relationship to the rod, said means being arranged t0 be engaged and moved by the wick when the latter is elevated thereby to permit the device to assume other than perpendicular relationship to the rod.

lO. In a burner of the class described, the combination withithe wick, of wick raising mechanism involving a rod, a device having an aperture through which the rod extends and which is capable of movement in the direction of movement of the rod,

. said device being free from the rod when in substantially perpendicular relationship thereto but which is so balanced as to assume an angular relationship with respect to the rod therebyto clutchV the same when suspended solely from the rod, a stop for limiting the movement of the device and cooperating therewith in such manner as not to disturb the clutching of the rod by said device, a second stop movable into the path of the device and coacting therewith in such manner as t0 release the device from the rod, and means for Supporting the device when in normal position in perpendicular relationship to the rod, said means being arranged to be engaged and moved by the wick when the latter is elevated thereby to permit the device to assume other than perpendicular relationship to the rod.

l1. In a burner of the character described, the combination of a supporting structure involving a wick guide, a wick movable therein, a member movably supported'by' the structure Aand operatively connected' to the wick and through which the wick is raised and lowered, a lever pivotally supported by the structure and extending inV juxtaposition to the member and having a part disposed within the path of the wic whereby the lever is tilted when the wick is elevated, a device normally resting upon the lever, the device being free from the aforesaid member when in such position but acting to attach itself to the member when shifted from normal position by the swinging of the lever, and means for limiting the movement of the device.

l2. In a burner of the character described, the combination of a supporting structure involving a wick guide, a wick movable therein.y a member movably supported by the structure and operatively connected to the wick and through which the wick is raised and lowered, a lever pivotally supported by the structure and extending in juxtaposition to the member and having a part disposed within the path of the wick whereby the lever is tilted when the wick is elevated, a device normally resting upon the lever and having an aperture through which the aforesaid member is freely mov-z able when the device rests upon the lever, the device acting to clutch itself to the inember when shifted from normal positionby the swinging ofthe aforesaid lever, and means for limiting the 'movement of the device.

13. In a burner of the character described, the combination of a structure incorporating wick guide, a wick supported therein for vertical movement, wick raising mechanism supported by the structure, operativeconnections between said mechanism andthe wick, said connections involving a vertically movable rod, a lever pivotally supported by the structure and having a part normally projecting into the path of the wick so as tobe engagedl by the wick when the latter is elevated to swing thelever upon its pivot, a device normally supported by the lever in perpendicular relationship to the rod, the device having an aperturev through which the rod extends and is free to move therein, a rocker arm pivotally supv ported by said device and having anaperture through. which the rod extends, the.

aperture being of such size as to allow free relative movement between'- the arm and rod when the arm is substantially perpendicular to the rod, the arm clutching the rod when in other than perpendicular relationship thereto, means tending to move the rocker arm with respect to the device thereby toA cause. said arm `toclutch the rod, the afore-,

said lever havinga part cooperating with a part` ofrsaid arm when the parts are in normal positionto -maintain the arm per' pendicular to the rod, and a stop for limiting the movement of the device.

i4. In a burner 0f the characterdescribed,`

the combination of a structure incorporating a wick guide, a wick supported therein for vertical movement, a wick raisingmechal nism supported bythe structure, operative connections between said mechanism and the wick, said connections involving a vertically movable rod, a lever pivotally supported by the structure and having a part normally projecting into the path of the wick so as to be engaged bythe wick when the latter is elevated to swing the lever upon its pivot, a device normally supported by the lever in perpendicular relationship to the rod, the device havingan aperture through which the rod extends and is free to move therein, a rocker arm p ivotally supported by said device and having an aperture through which the rod extends, the aperture being of such size as to allow free relative movement between the arm and rod when the arm is substantially vperpendicular to the rod, the arm clutching the rod when in other than y perpendicular relationship thereto. means tending to move the rocker arm with respect to the device thereby to cause said arm to clutch the rod, the aforesaid lever having a part cooperating with a part of said arm when the parts are in normal position to maintain the arm per- `pendicular to the rod, a stop for limiting the movement of the device, and a member movably supported by the structure and shitable into a position to engage the rocker arm, such engagement of the member with the arm tending to shift the arm into perpendicular relationship to the rod. l5. ln a burner of the character described, the combination oia structure incorporating ka wick guide, a wick adjustable therein, wiclr raising mechanism supported by the structure, operative connections between saidl mechanism andthe wick, said connections involving a member that `is movable with the wick, a device movable in the direction of movement of said member and connectableto said member, means arranged to be engaged and moved by the wick when thev latter is elevated for effecting connection .of thev device with the member, a stop movably supported rby the structure and shitable 'from effective to inetiective position, the stop whenl in effective position serving' to arrest movement of the device, and a flame spreader for application to the burner and serving when applied to retain the aforesaidstopi inA effective positions 16; In a burner of the character described, the combination et a structure incorporating ay wick guide, a wick` adjustable therein, wick raising mechanism supported by the structure,v operative connections between said mechanism andthe wick, said connections involving a member that is movable with the wick, a device movable inthe direction of movement ot' said member and connectible to said member, means arranged to be engaged andmoved by the wick when the latter is elevated for effecting connection oi the device with the member, a stop movably supported by the structure and shi'tabie `from eir'iective to inetiective position, the stop when in effective position serving to arrest movement of the device, a spreader for application to the burner and serving when applied to retain the aiioresaid stop in effective position, and an abutment supported by the structure and where with the aforesaid device is adapted to en gage when the stop is in ineffective position, the engagement of the device with the abutment tending to disconnect the device trom the member.

17. ln a burner oi the class described, the combination with the wick, o a member movable therewith, a device capable of limited movement in the direction. et more ment of said member, a clutch carried by the device for securing it to the member, means arrangedy to be engaged and moved by the wick when the latter is elevated, and operative connections between said means and thev clutch whereby the clutch is acti 'l when the said member is moved by the 18. 'in a burner ot the class describet combination ot a structure incorporati wick guide, a wick adjustable therein, raising mechanism supported by the etree ture, operative connections between :sai/l mechanism and the wick, said connections involving a rod, a device movable along the rod, a clutch carried by the device for secnrA ing` it to the rod, a member arranged to be engaged and moved by the wick when 'the latter is elevated, operative connections bf2-- tween said member and the clutch whereby the clutch is rendered effective, when the said member is moved by the wick, and means for limiting the movement ot die aforesaid device.

ln testimony whereof, l hereunto amt; my signature.

LEE S. CHADVIGK 

